Solar cell



FIG. 1 is an enlarged perspective view of a solar cell showing our new design;

FIG. 2 is a rear side view of thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front side view thereof;

FIG. 6 is right side view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a solar cell, as shown and described. 